Winding machine structure



Nov. 13, 1962 z. c. POSSIS ETAL WINDING MACHINE STRUCTURE 2 Sheets-Sheet 2 Filed Sept. 2, 1958 R as 6 mum W G mam I 0 p F /NP F a RWM ev M m W ATTORNEYS United States Patent 3,045.),475 WINDING MAQHHQE STRUQTURE Zinon C. Possis, Minneapolis, Wilbert E. Jehnson, Forest Lake, and Melvin It". Strau'o, Hopkins, Minn, assignors to Possis Machine Corporation, Minneapolis, Minn, a

corporation of Minnesota Filed Sept. 2, 1958, Ser. No. 758,227 8 Claims. (Cl. 140-921) This invention relates generally to machines for winding coils for use in armatures. More particularly, this invention relates to specific winding block structure and associated mechanism for the removal and ejection of a finished coil from a coil winding machine.

The principal object of this invention is to provide means for removing and ejecting a finished coil from a coil winding machine.

A further object of this invention is to provide separable winding block means and associated mechanism for parting the winding block for removal and ejection of finished coils from a coil winding machine.

Other objects of the invention will become apparent as the description proceeds.

To the accomplishment of the foregoing and related ends, this invention then comprises the features hereinafter fully described and particularly pointed out in the claims, the following description setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principles of the invention may be employed.

The invention is illustrated by the drawings in which the same numerals refer to corresponding parts and in which:

FIGURE 1 is an elevation, partly in section, of the winding block and ejection means according to this invention, showing a finished coil on the winding block at the ejection station prior to parting of the separable winding block;

FIGURE 2 is a similar elevation showing lifting mechanism in position for parting the separable winding block;

FIGURE 3 is a fragmentary and somewhat enlarged detail end view, taken on the line 33 of FIGURE 2 and in the direction of the arrows, showing the connection between the lifting mechanism and the upper portion of the separable winding block; 7

FTGURE 4 is an elevation similar to FIGURES l and 2 but showing the upper portion of the separable winding block carrying a finished coil lifted into position for removal of the coil from the winding block;

FIGURE 5 is a similar elevation showing a finished coil removed from the winding block and in position for ejection from the winding machine; and

FIGURE 6 is a plan view on somewhat enlarged scale taken on the line 66 of FIGURE 5 and in the direction of the arrows.

Referring to the drawings, the winding machine struc ture according to this invention includes a rotary horizontal turntable it) mounted for rotation on a standard supported on a suitable base 12, only partially shown. A coil winding form or block indicated generally at 13 is secured to the top of the turntable it The winding form or block 13 is separable and is formed of mated top and bottom portions 80 and 81. A peripheral groove 82 is formed at the interface between the top and bottom segments of the winding block to receive and position the wire as it is spun onto the winding block by spinners as described in our co-pending application Serial No. 758,226, filed September 2, 1958.

To facilitate removal of the coil from the winding block, all of the groove 82 is formed in the top segment of the separable winding block to provide a coil supporting shoulder 83 of size and shape corresponding generally to the desired size and shape of the coils to be wound. Also, to facilitate removal of the coils from the winding block, a plurality of relativelyv wide vertical channels 84 extending at least as deep as the shoulder 83 are provided on opposite sides of the winding form 13. The vertical channels 84 preferably extend substantially deeper than the shoulders 83 in order to facilitate binding the finished coil 85 with spaced strips of tape 86, as described in our co-pending application Serial No. 802,463, filed March 27, 1959. The coil 85 is composed of individual wires and the finished coil is held in its desired shape by means of the strips of tape 86 surrounding the wires.

The winding block 13 is mounted stationary with respect to the turntable so as to be movable with the turntable from the winding station to the taping station and finally to the ejection station of a coil winding machine. The winding block is desireably easily removable from the turntable to facilitate substitution of other winding blocks of different sizes and shapes. The upper and lower mated portions 80 and 81 of the separable winding block 13 are maintained aligned with one another by means of piris 8-7 disposed in one of the block portions in registry with suitable corresponding pin receiving apertures or sockets in the other mated portion of the winding block.

A housing or'frame, indicated generally at 88, is supported by the machine base 12 and extends around the peripheral edge of the turntable 1t) and over the turntable above the path of the winding block 13 in its rotation to the several operating stations of the coil winding machine. The housing or frame 88 comprises a pair of like spaced apart parallel vertical Wall members 89 and V Each of the vertical frame walls 89 and 90 is provided 1 I with a horizontal groove in its inner surface along its top edge (of which only'groove in wall member 90 is visible in the drawings). A transverse horizontal plate member 96 is fitted into and adapted to slide in the grooves 95, extending between the vertical walls. Slidable plate 96 is securedto the end of a piston rod 97 which in turn is secured to move with the piston 98 of a hydraulic cylinder motor 99 to impart movement to the plate 96 for sliding movement in the grooves 95. The hydraulic cylinder 99 is mounted on theIcross-member 92 on the side remote from the housing 88 and the Patented Nov. 13, 1962 piston rod 97 extends through an aperture 100' in the cross-member. A further hydraulic cylinder 101 is mounted on the top surface of the slidable plate 96 and is movable with it. Cylinder 101 contains a piston 102 controlling the movement of a piston rod 103 which passes through a suitable aperture in the slidable plate 96.

The lower end of the piston rod 103 is provided with a lifting tool 104 comprising an open channel member having a pair of opposed parallel spaced apart flanged lips 105 and 106 along its bottom surface. The lips 105 and 106 and the space between them are aligned in the direction of movement of the slidable plate 96. The top portion 80 of the winding block is provided on its upper surface with a lifting knob or handle 107 having a pair of opposed horizontal parallel and longitudinal grooves 108 adapted to receive the flanged lips 105 and 106 of the lifting tool 104. Thus, it will be'seen that when the lips of the lifting tool 104 engage the grooves or channels 108 in the lifting member 107 on the top of the upper mating portion of the winding block 13 and fluid is introduced in the space in cylinder 101 below the piston 102, the upper portion 80 of the separable block will be lifted from the lower portion.

To insure alignment of the lifting tool 104 with the lifting handle 107, there is provided a stabilizing vertical rod 109 parallel to piston rod 103 and secured to it by means of a connecting link 110 rigidly fastened to the lower end of the piston rod and to the lifting tool 104. Stabilizing rod 109 passes with a sliding fit through an aperture in the sliding plate member 96. The upper end of the stabilizing rod 109 is provided with an adjustable arm member positioned so as to engage a switch 112 when the piston 102 has moved the piston arm 103 and lifting tool 104 into position at a level to engage the grooves 108 of the lifting handle 107 on the upper portion of the winding block 13. 'Switch 112 controls the mechanism which regulates flow of fluid to cylinder 99 and upon actuation initiates'flow of fluid into the cylinder 99 behind piston 98 to push the piston and piston rod 97 forward to move the sliding plate 96 and its associated mechanism forward so that the lifting mechanism may engage the lifting means on the winding block. This forward movement of, the slidable plate 96 and its associated mechanism is shown in the transition between FIGURES 1 and 2.

As the slidable plate 96 is moved to its forward position with the lifting tool in engagement with the lifting means on the winding block, switch means, which are not shown, are actuated to initiate flow of hydraulic fluid to theportion of cylinder 101 below the piston 102 to force the piston upwardly carrying along with it piston rod 103 and lifting tool 104. The lifting tool carries with it the upper portion 80 of the winding block and the finished coil 85 carried on the shoulder 83 on the bottom surface of the upper portion of the winding block. A finished coil wound on shoulder 83 remains there even when the block is separated, because the coil is wound so tightly around the coil forming support. In fact, the coil must be forcibly removed from the shoulder 83 in some suitable manner as described in detail below. This upward movement of the lifting mechanism is shown in the transition between FIGURES 2 and 4.

A pair of crank arms 113 and 114 are keyed to a shaft 115 journalled for rotation in the outer extremities of the 7 vertical walls 89 and 90 above the turntable 10. Each of the crank' arms 113 and 114 is provided at one end with a projecting coil dislodging pin or rod 116 which extends inwardly through the open windows in the side wallsflof the housing. 'The pins 116 are adjustably mounted in the crank arms so as to be positioned above vertical channels 84in the opposite sides'of the winding block 13. The opposite ends of the crank arms 113 and 114 are also provided with pins 117 by which movement 4 116 elevated and pins 117 resting against the inner edges of walls 89 and by means of coil spring 134 (FIG- URE l).

A chute 118 is eccentrically mounted between the vertical walls 89 and 90 of the housing 88 for receiving and ejecting finished coils removed from the upper portion of the winding block. The under surface of chute 118 is provided with a lug 119 adjacent the discharge end of the chute by which one end of a link 120 is pivotally secured to the chute, as by a pin 121. The opposite end of link 120 is keyed to a shaft 122 journalled for rotation in the lower portions of vertical walls 89 and 90 of the housing 88. As shown in FIGURE 2, a crank arm 123 is keyed to an end of the shaft 122 extending beyond the vertical wall of housing 88 and the free end of crank arm 123 is pivotally secured, as by means of a pin 124, to the end of a piston rod 125 which is secured to the piston 126 of a hydraulic cylinder 127. Hydraulic cylinder 127 is in turn pivotally secured to the outside wall of the housing 88, as by means of a pin 128. The upper end of chute 118 is preferably provided with a downturned flange 129. The lower surface of the chute 118 adjacent the upper flanged end is provided with a transverse bar or rod extending beyond the opposite side walls 131 of the chute to provide guide pins which move in parallel longitudinal grooves or channels 132 formed in the opposite inside surfaces of the vertical walls 89 and 90 of the housing.

When the lifting mechanism lifts the upper portion of the separable winding block and reaches the upper end of its stroke, switch means are actuated to initiate flow of fluid to cylinder 127 above the piston 126 to force the piston downwardly to rotate crank arm 123 and shaft 122 to which it is secured, in turn rotating link 120 and pushing chute 118 upwardly and forwardly, guided by the pins 130 riding in the channels 132. As the chute reaches its forwardrnost position, the flanged forward edge 129 bears against the pins 117 carried by the crank arms 113 and 114. Crank arms 113 and 114 being keyed to shaft 115 move together so that as the lower portions of the crank arms are pushed forwardly against the tension of spring 134, the upper portions carrying coil dislodging pins 116 are. moved downwardly. As the pins 116 move downwardly within vertical channels 84 on the winding block, the finished coil 85 is dislodged from the shoulder 83 and drops free onto the chute, as shown in FIGURE 5. Flow of fluid into the lower portion of cylinder 127 below piston 126 is then initiated to return the chute 1-18 to its lowermost position and the finished coil 85 is ejected into a waiting container. A further orienting 111163118 113 is provided on the bottom surface of the top portion 80 of the separable winding block adapted to fit into a corresponding aperture in the top surface of the lower portion of the block.

In the operation of the Winding machine mechanism of this invention, a wire armature coil 85 is formed by spinning wires into the peripheral groove of winding block 13 to deposit wire on the shoulder 83 of the upper portion 80' of the separable winding block. The wires of the coil are then bound together by means of strips of tape 86. The coil winding and taping operations are described in our co-pending applications heretofore identified. The turntable 10 is then rotated to index the winding block with its finished and taped coil in position disposed under the coil removingand ejection station. This arrangement is shown in FIGURE 1.

Fluid is introduced into cylinder 101 to force piston 102 downwardly to lower the lifting tool 104 into proper position' for engagementwith the parallel longitudinal grooves 108 of the lifting'member 107 disposed on top of the upper portion of the winding block. When this position is reached, the arm 1'11 carried on the stabilizof the crank arms is actuated. The crank arms are ing rod 109 actuates switch 112 to initiate flow of fluid into cylinder 99 behind piston 98 to force the piston and piston rod 9-7 forward to slide plate member 96 carrying the lifting mechanism forward and into engagement with the separable winding block, as shown in FIGURES 2 and 3.

When this forward position of plate 96 and the lifting mechanism carried by it has been reached, flow of fluid in cylinder 101 under piston 102 is initiated to retract the piston rod and lift the upper portion of the Winding block carrying the finished coil on its shoulder 83 and disengage it from the lower portion of the winding block. This is shown in FIGURE 4.

Flow of fluid into the upper portion of cylinder 127 is then initiated to force piston 126 downwardly and, through crank arm 123 and link 120, to move the chute 118 upwardly and forwardly into horizontal position under the upper portion of the winding block. The forward movement of the chute causes its flanged forward edge 129 to contact pins 117 carried by crank arms 113 and 114 to move the lower portions of the crank arms forwardly and to move the upper portions of crank arms 113 and 114 carrying pins 116 downwardly. The pins 116 are forced downwardly within the vertical channels 84 of the winding blocks against the upper surface of the finished coil held on the winding block to dislodge it and deposit it upon the chute, as shown in FIGURE 5.

The piston 126 in cylinder 127 is then retracted to move the chute 118 from between the upper and lower portions of the winding block to its inclined position to eject the finished coil by gravity into a waiting container. The lifting tool 194- is then lowered to re-deposit the upper portion 80 of the winding block into mated relationship with the lower portion. The lifting tool is disengaged from the winding block by retracting piston 98 and sliding plate 96 backwardly and piston 102 is retracted. The turntable carrying the empty winding block is then rotated to carry the winding block to the coil winding station for deposition of another coil.

It is apparent that many modifications and variations of this invention as hereinbefore set forth may be made without departing from the spirit and scope thereof.

The specific embodiments described are given by way of example only and the invention is limited only by the terms of the appended claims.

We claim:

1. In a coil winding machine adapted to form a coil composed of a plurality of wires, a separable coil forming and support means for facilitating removal of coils produced thereon, said coil support means comprising mated top and bottom members having a horizontally disposed interface, a peripheral groove at the interface between said top and bottom members formed entirely in the top of said members to provide a coil supporting shoulder therein, one of said separable coil support members is fixed to and supported on a turnable for revolution through a plurality of work stations and the other of said coil support members is removable from said first member, means for removing a coil supported by said removable coil support member, said removable means comprising channels formed in the periphery of said removable coil support member and intersecting said coil supporting shoulder, at least one projecting member movable into engagement with said separable coil supporting member through one of said channels normal to the interface and across the peripheral groove, and a coil receiving and ejecting means comprising a chute movable into position between the mated members of said separable coil support means when said removable member is held lifted away from said supported member fixed to said turntable 2. In a coil winding machine adapted to form a coil, a separable coil forming and support means for facilitating removal of coils produced thereon comprising, separable coil support members and a turntable, one of said separable coil support means being secured to and stationary with respect to said turntable for revolution through a plurality of work stations, the other of said 6 separable coil support members selectively mountable on and removable from said first separable coil support member, said separable coil support members have channels therein extending normal to said interface and at least from said shoulder to the periphery thereof, and means for removing a coil supported by said other separable coil support member comprising at least one projecting member movable through one of said channels normal to the interface and across said shoulder, and the coil receiving and ejecting means comprising a chute movable into a position between said separable coil support mem bers when separated.

3. A coil winding machine according to claim 2 in which said chute engages and actuates leverage producing movement of said projecting member.

4. In a coil winding machine adapted to form a coil composed of a plurality of wires, a base; a horizontal turntable supported on said base for rotation in a horizontal plane; a separable coil forming and support means disposed on said turntable, said coil support means comprising an upper and lower mated pair of members, the upper member being removable from the lower member, said coil support means having a peripheral groove adjacent the interface between the upper and lower members and formed entirely in said upper removable member, the bottom of said peripheral groove forming a coil supporting shoulder on said upper member, a plurality of vertical channels in the periphery of said coil support means on the opposite sides thereof intersecting said peripheral groove; a housing supported on said base and extending over said turntable having coil support means thereon; lifting means on the top surface of said upper coil support member; horizontally and vertically movable lifting mechanism supported in said housing above said coil support means, said lifting mechanism including a lifting tool, a carrier for said lifting tool, hydraulic motor means for moving said lifting tool horizontally into engagement with the lifting means of said upper coil support member and moving said lifting tool vertically to lift said separable upper coil support member; coil removing means mounted on said housing, said coil removing means including at least one crank arm, a projecting finger extending from said crank arm into one of said vertical channels and across the peripheral groove of said coil support means when in lifted separated position; and eccentrically mounted coil receiving and ejecting means mounted within said housing and comprising a chute movable into the space between said upper and lower coil support members when in separated position and hydraulic motor means for moving said chute into and out of said coil receiving position.

5. A coil winding machine adapted to form a coil comprising a separable coil forming and support means, means for aligning the portions of said separable coil and support means while a coil is being wound thereon, means for separating the portions of said separable coil support means after a coil has been wound, a coil receiving chute movable into a position between the portions of said separable coil support means when separated, and a coil ejecting means associated with one of said separable coil support means including leverage engaged -by said chute when it is moved into a position between the portions of said separable coil support to actuate said ejecting means.

6. A coil winding machine according to claim 4 further characterized in that said housing includes a pair of spaced parallel vertical walls each having a horizontal guide channel on its interior surface and said lifting tool carrier comprises a plate adapted to be slidably supported in said channels at its opposite ends, hydraulic motor means for moving said plate horizontally being mounted on said housing and hydraulic motor means for lifting said lifting tool vertically being carried by said plate 7. A coil winding machine according to claim 6 further characterized in that said housing is provided with a pair of, windows, said coil removing means comprises a pair of crank arms each mounted on the outside of one of said vertical Walls, the projecting finger members of said coil removing means extending through said Windows.

8. The coil Winding machine of claim 4 in which means are formed on the end of said eccentrically mounted core receiving and ejecting means chute to engage said crank arms and force said projecting fingers through said vertical channels as said eccentrically mounted coil receiving and ejecting means chute reaches itscoil receiving position.

References Cited in the file of this patent UNITED STATES PATENTS Morgan et al Feb. 24, 1880 Lenox Nov. 2, 1886 Allan Jan. 1, 1935 Aldrich May 23, 1944 Miller Aug. 16, 1949 Leland July 10, 1951 Whittum Ian. 25, 1955 Marzolf Nov. 25, 1958 

